JP2012533375A5

JP2012533375A5 -

Info

Publication number: JP2012533375A5
Application number: JP2012521029A
Authority: JP
Filing date: 2010-07-21
Publication date: 2013-03-14
Anticipated expiration: 2030-07-21

Claims

In a medical device, a telescopic longitudinal relative movement between an end of an elongated member, preferably a cylinder, and an end of a tube, preferably a cylindrical tube, that receives the end of the elongated member. A way to stop,
Providing a deformable blocking sleeve material of a predetermined length;
Attaching the tip of the length to a radially outer surface of the elongated member or an inner surface of the tube;
The elongate is subject to a relative longitudinal movement that causes the tip of the blocking sleeve material to subsequently retract its length into a gap, preferably an annular gap, between the elongate member and the tube. Applying to the member and the tube;
And the direction of relative longitudinal movement in the opposite, the length of the blocking sleeve material, see contains a step of continuing to receive a longitudinal deformation to disable longitudinal movement of such inverse further ,
The method, wherein the blocking sleeve material is formed from a material that is crushed or folded under the opposite relative longitudinal movement to provide increased friction .

A method of forming a joint in a medical device between at least an elongated member, preferably a cylinder, and a tube, preferably a cylindrical tube, using the method of claim 1 comprising :
The sleeve material is a sleeve material tubular surrounding a portion of the elongate member at least partially,
The sleeve is initially secured to the elongate member at the distal end of the sleeve;
Next, the portion of the elongate member surrounded by the sleeve, in the distal direction, is inserted into the tube,
Next, a tensile force is applied to the elongate member relative to the tube in a proximal direction such that the sleeve changes shape and applies increased friction to at least the inner surface of the tube.

In a medical device, a method for forming a joint between an elongated member, preferably a cylinder, and a tube, preferably a cylindrical tube, using the method of claim 1 comprising :
The sleeve material is a sleeve material tubular,
The sleeve is initially fixed to the inside of a portion of the tube at the proximal end of said sleeve,
Next, a portion of the elongated member, in a distal direction, so that through the sleeve is inserted into said tube,
A tensile force is then applied to the elongate member relative to the tube in a proximal direction such that the sleeve changes shape and applies increased friction to at least the outer surface of the elongate member. .

Said tube, said proximal end of said sleeve materials are secured to the elongate member, the method according to claim 2 or 3.

Prior to the step of disposing the elongate member inside the tube, disposing a second portion of the sleeve surrounding a portion of the elongate member proximal to the first portion of the sleeve;
Securing the second portion of the sleeve to the elongate member at the distal end of the sleeve;
After the step of applying a tensile force in a proximal direction to the elongated member relative to the tube, the second portion of the sleeve changes shape to cause a radial change between the elongated member and the tube. to apply a friction elevated in the space, further comprising a step of moving the proximal end of the second portion of the sleeve in the direction of the distal end of the tube, any one of claims 2 to 4 single The method according to item.

The method of claim 5 , wherein the second portion of the sleeve is longer than the first portion of the sleeve.

The step of moving the proximal end of the second portion of the sleeve in the direction of the distal end of the joint is accomplished by applying an annular plug to the proximal end of the tube. The method according to claim 5 or 6 .

A junction in a medical device,
Comprising at least an elongated member, preferably a cylinder, and a tube, preferably a cylindrical tube, wherein the first portion of the tubular sleeve material at least partially surrounds a portion of the elongated member, and Secured to the elongate member at the distal end of the sleeve;
The portion of the elongate member surrounded by the sleeve is disposed inside the tube;
Under a tensile force across the joint, the sleeve is configured to change shape or change shape to apply increased friction to at least the inner surface of the tube ;
The sleeve is formed from a material configured to be collapsed or folded to provide the enhanced friction, or from a material collapsed or folded to provide the enhanced friction; A junction in a medical device.

The joint of claim 8 , wherein the tube is secured to the elongate member proximal to the sleeve.

A second portion of the sleeve surrounding a portion of the elongate member proximal to the first portion of the sleeve, the second portion of the sleeve secured to the elongate member at the distal end of the sleeve. Further comprising a part,
The proximal end of the second portion of the sleeve is further compressed in the direction of the distal end of the joint;
Under a tensile force across the joint, the second portion of the sleeve changes shape or changes to apply an increased frictional force to the radial space between the elongated member and the tube. And
The sleeve is formed from a material configured to be collapsed or folded to provide the enhanced friction, or from a material collapsed or folded to provide the enhanced friction; The joint according to claim 8 or 9 .

The joint of claim 10 , wherein the second portion of the sleeve is longer than the first portion of the sleeve.

12. A joint according to claim 10 or 11 , wherein the proximal end of the second part of the sleeve is further compressed in the direction of the distal end of the joint by an annular plug.